Gas heater



Nov. 28, 1933. B. c. BARTLEBAUGH GAS HEATER Filed Feb. l, 1933 3Sheets-Sheet 2 Nov. 28, 1933.

B. c. BARTLEBAUGH 1,937,217

GAS HEATER Filed Feb. l, 1933 3 Sheets-Sheet 3 Patented Nov.l 28, 1933 fUNITED STATES, PATENT OFFICE 1 ""GAs HEATER lBenjamin Bartlebaugh,Wheeling, W; Va. Appiicatin February 1, 1933.` vsare-1 No. 654,705l j sclaimfs: (o1. ies-9o) The present invention is directed to improvementsin gas heaters. v A A The invention has vfor one ofitsobjects to'providea gas heater so constructed that all unburnedgases escaping from 'theburner will be effectively Vmixed with incoming fresh air to eliminateany possibility of the unburned gas being discharged into the space tobe heated.

"Another object of the invention is to provide l0 aheater of thischaracter constructed in such a manner that fresh air is mixed withgas'escaping from the burner and the mixture of unburned gas and thefresh' air is compelled to pass to the flame :jets of theburner in orderthat the unburned gas will be positively consumed, and will not-be-dischargedinto lthe room with the heated fresh air. Y

Still another and important object of the invention is the provision ofa main air heating unit sov constructed that the fresh air will -notonlybe effectively heated before entering the room, but the air heatedin the unit will as it is dischargedv therefrom greatly aid in drawing,fresh air from the lower end of the heater as the heated airisdischarged from the unit.

` With these'and other objectsin View, ihis invention resides in thenovel features of construction, formation, combination and arrangementof parts to be hereinaftermore fully described,

claimed and Villustratedy infthe accoinpanyingv drawings, in WhichzFigure 1 is a front view of the heater. Figure 2 is a rear view thereof.Figure 3 is a sectional view on line 3 3 of Figure 1.

Figure 4 is a sectional view on line 4-4 of Figure-1.

Figure v5 is a perspective view of the mainair heating unit.

Referring to the drawings, 1 designates a` casing consisting of innerand outer laterally spaced end Walls 2 and 3, respectively, which defineair chambers 4, as clearly shown in Fig. 4 of the drawings. 'Ihe frontwall 5 is provided with slidable guard grilles 6 guided in the grooves 7formed'in opposite sides of the front opening 8.

' The back plate 9 of the casing 1A is bolted to the rear of the heaterand is provided with a row of horizontally disposed fresh air inletopenings 10. The lower Aedge of the plate 9 does not extend to thebottom of the heater so that an air admission slot 11 is provided.

The heater is supported by legs 12 of such length as to hold the bottom12 thereof spaced from the floor in order that fresh air may pass to theinterior of the heater through the passage 13 Ydened by the firewall14and partition 15; said wall and partition extending longitudinally ofthe combustion chamber 16.

The upper edge of the partition 15 terminates in an upwardly and'forwardly inclined wall 17', which in turn terminates in a downwardlyand forwardly inclined `wall 18. f

A top'wall 1-9 is mounted above the wall 18 andhas its rear edge bentdownwardly to provide a rear wall 20, the lower edge of which bearsagainst the inner surfaceof the plate 9 at a point slightly Ybelow theopenings l10.

Upon reference to Fig. 3 it will be observed that the wall` 15 and plate9 define an air passage 21 which discharges into-the airpassage 22defined by the wall 17 and 20, and that the re wa1l14 is supported byYan angle bracket 23 clamped to the gas inlet pipe 24 and abuts theburner 24.Y Gas from a suitable source of supply is conducted to'Y theburner 25 through the pipe 26, there being a valve 27 in said pipe tocontrol'the'ow of gas.' The valve 27 is controlled through the mediumofa rod 28 extending along the bottom of the heater, the forward endthereof'being provided with ahandle 29 tofacilitate operation of therod, as is customary. 1

A 'top 30 is employed and forms in conjunction with the walls 19, 20 andthe plate 9 an upper fresh air receiving chamber 31, air thereto beingadmitted through the'inlet openings 10 and the openings 32 formed in theend walls 2. Vertically disposed air conducting channel members 33 aremounted in the air chambers 4 so'that air can pass freely through themembers from the lowermost openings 32 to the uppermost ones.

The side flanges 34 and the front flange .3,5 of

the top 30 are provided with air outlet openings 36.

A-baiie plate 37 is Vsuspended below the wall 18 by brackets 38, and hasits inner edge alined with and vertically spaced from the upper edge ofthe fire Wall 14, there being a passage 39 beu tween said plate andwall.

Fresh air entering the passage 13 from the opening 49 and from thebottom of the heater will be forced by the heat from the'burner into theflame of the burner in a manner to be hereinafter described.

A main heating unit 41 is employed and consists of a plurality of flues42 secured in spaced relation by a metal sheet 43 riveted to therespective flues.

The unit 41 ismounted between the top wall 19 and the wall 18, asclearly shown in Fig. 3, and is supported in such position by alongitudinally extending plate 43, the longitudinal edges of which aresuitably secured respectively, to the fiues 42 and wall 18. The innerends of the flues 42 rest upon the wall 18 and adjacent the rear endthereof and have direct communication with the air passage 22.

The bracket 23 is provided with a pluralityof perforations 44 in orderthat air and unburned gas from the passage 13 may enter the combustionchamber i6 and be subjected to the flame of the burner 25.

When gas from the burner 25 is ignitedthe hot unburned gases will ascendand be directed rear- Wardly by the baffle plate 37 and wall 1S, andthence rapidly downwardly by the wall 17 behind the fire wall 14 andinto the passage 13. rlrhe hot non-consumed gases will rapidly ccmminglewith the air in the passage 13 and this mixture of air and gases is thenblown through the perforations 44 with considerable velocity, and thismixture is directed under pressure into the ascending flame of theburner, thereby positively burning the unburned gases to` eliminate, thedischarge of unburned gases into a room. As long as the burner is inloperation this cycle takes place and the discharge of obnoxious odorsand dangerous gases into a room is positively prevented.

Obviously heat in the combustion chamber 16 will heat the baffle plate37, wall 18 and plate'43 and is transmitted to the flues 42, which arelocated at the hottest point of the heater. After the ues have becomewell heated, and dueto their location, the air heated therein rapidlydischarges, and due to this rapid discharge of heated air a ratherstrong suction is created in the passages 22 and 21 which willdraw freshair from the bottom of the heater into the iiues.

Heat from the flues 42 will heat the walls 19 and 20 to a considerableextent, and consequently fresh air entering the chamber 31 throughopenings 10 and l22 will Vbe heated and discharged through the openings36 of the top 30.

What is claimed is:-

, 1. A gas heater comprising a casing including a front having anopeningtherein, and a back plate, a wall in the casing-spaced from the top wallthereof and having its rear edge abutting the back plate, said casinghaving a combustion chamber therein including a top wall and apartition, the Ytop wall and partition forming in conjunction with thefirst named wall and the back plate a fresh air passage, a main heatingunit mounted between the first named Wall and top wall of the combustionchamber, said unit consisting of a plurality of laterally spaced fiueshaving their rear ends communicating with said passage and their frontends discharging through the opening of the front of the casing, therear ends of said flues resting on the top Wall of the combustionchamber, and means connecting the forward ends of the fiues to the topWall of the combustion chamber.

2. A gas heater comprising a casing including a front having an openingtherein, and a back plate, a wall in the casing spaced from the top wallthereof and having its rear edge abutting the back plate, said casinghaving a combustion chamber thereinincluding a top wall and a partition,the top wall and partition forming in conjunction'with the first namedwall and the back platea fresh air passage, a main heating unit mountedbetween the first named wall and top Wall of the combustion chamber,said unit consisting ofl a plurality of laterally spaced flues havingtheir rear ends communicating with said passage and their front endsdischarging through .the opening of the front of the casing, the rearends of said ues resting on the top wall of the combustion chamber, anda plate having its longitudinal edges xed, respectively, to the fluesand top wall of the combustion chamber.

3. A gas heater comprising a casing including'y a front having anopening therein, and a back plate, a wall in the casing spaced from thetop wall thereof and having its rear edge abutting the back plate, saidcasing having a combustion chamber therein including a top Wall and apartition, the top wall and partition forming in conjunction With thefirst named Wall and theback plate a fresh air passage, a main heatingunit mounted between the first named Wall and top wall of the combustionchamber, said unit comprising a flue having its rear end communicatingwith said-passage and its forward end discharging through the opening ofthe front of the casing, the rear end ofsaid ue resting on the top `wallof the combustion chamber, and means connecting theV forward end of theunit to the top wall of the combustion chamber. l

BENJAMIN C. BARTLEBAUGH.

